System Requirements

File & folder permissions

To ensure a stable and smoothly running Umbraco installation, these permissions need to be set correctly.

Hosting

Umbraco 7.x.x

  • IIS 7+ (II6 will not work because .NET 4.5 is incompatible with Windows Server 2003)
  • SQL CE, SQL Server 2008 and higher or MySQL (must support case insensitive queries)
  • ASP.NET 4.5 Full-Trust
  • Ability to set file permissions to include create/read/write (or better) for the user that "owns" the Application Pool for your site (NETWORK SERVICE, typically)

Umbraco 6.x.x

  • IIS6+ (IIS 7 Preferred)
  • SQL CE, SQL Server 2008 and higher or MySQL (must support case insensitive queries)
  • ASP.NET 4 Medium-Trust/Full-Trust (Should work in Medium-Trust environments, but Full-Trust is still preferred)
  • Ability to set file permissions to include create/read/write (or better) for the user that "owns" the Application Pool for your site (NETWORK SERVICE, typically)

Umbraco 4.7.x

  • IIS 6+ (IIS 7 Preferred)
  • SQL CE, SQL Server 2008 and higher or MySQL (must support case insensitive queries)
  • ASP.NET 4, MVC 3
  • Medium-Trust/Full-Trust (Should work in Medium-Trust environments, but Full-Trust is still preferred)
  • Ability to set file permissions to include create/read/write (or better) for the user that "owns" the Application Pool for your site (NETWORK SERVICE, typically)

Umbraco 4.6.x (Codename JUNO)

  • IIS 6+ (IIS 7 Preferred)
  • SQL Server 2005+
  • ASP.NET 4
  • Medium-Trust/Full-Trust (Should work in Medium-Trust environments, but Full-Trust is still preferred)
  • Ability to set file permissions to include create/read/write (or better) for the user that "owns" the Application Pool for your site (NETWORK SERVICE, typically)
  • Possible to run in virtual directory, though still recommended not to

Umbraco 4.5.x

  • IIS 6+ (IIS 7 Preferred)
  • SQL Server 2005+
  • ASP.NET 3.5+ (ASP.NET 4.0 Preferred)
  • Medium-Trust/Full-Trust (Should work in Medium-Trust environments, but Full-Trust is still preferred)
  • Ability to set file permissions to include create/read/write (or better) for the user that "owns" the Application Pool for your site (NETWORK SERVICE, typically)
  • Possible to run in virtual directory, though still recommended not to

Umbraco 4.0.x

  • IIS 6+
  • SQL Server 2005+
  • ASP.NET 2.0+
  • Full-Trust (High-Trust is the minimum; Medium-Trust will not work)
  • Ability to set file permissions to include create/read/write (or better) for the user that "owns" the Application Pool for your site (NETWORK SERVICE, typically)
  • Virtual directories are not supported

Browsers

The Umbraco UI should work in all modern browsers:

Umbraco 7.x.x

  • Firefox (Latest)
  • Chrome (Latest)
  • IE10+ (will not alway work correctly in lower versions)

Umbraco 4/6

  • Firefox (Latest)
  • Chrome (Latest)
  • IE7+